title: [When and how to look for a deficiency of intestinal lactase?].
mesh_terms: D005075:Biological Evolution; D006801:Humans; D007422:Intestines / Q000201:enzymology*; D007787:Lactose Intolerance / Q000175:diagnosis*; D001616:beta-Galactosidase / Q000235:genetics
chemical_list: D001616:beta-Galactosidase
vernacular_title: Quand et comment rechercher un déficit en lactase intestinale?